This Recommendation defines the guidelines for the support of the communication of documents using Group 3 facsimile between user terminals via public networks and is intended to apply in those cases where an ROA or service provider does not wish to offer a Telefax 3 service as defined in Recommendation F.182. This Recommendation is based upon existing Recommendation F.182 but has been developed to reflect the changing telecommunications environment with regard to the provision of regulated “end-to-end” services.